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authorBoris Brezillon <boris.brezillon@free-electrons.com>2015-07-01 10:21:47 +0200
committerThierry Reding <thierry.reding@gmail.com>2015-07-20 09:46:06 +0200
commit5c31252c4a86dc591c23f1a951edd52ad791ef0e (patch)
tree4a955e92027bbf95cd5fc9222245c0e4c8810a43 /drivers/pwm/pwm-mxs.c
parentd770e558e21961ad6cfdf0ff7df0eb5d7d4f0754 (diff)
pwm: Add the pwm_is_enabled() helper
Some PWM drivers are testing the PWMF_ENABLED flag. Create a helper function to hide the logic behind enabled test. This will allow us to smoothly move from the current approach to an atomic PWM update approach. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/pwm-mxs.c')
-rw-r--r--drivers/pwm/pwm-mxs.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c
index b430811e14f5..9a596324ebef 100644
--- a/drivers/pwm/pwm-mxs.c
+++ b/drivers/pwm/pwm-mxs.c
@@ -77,7 +77,7 @@ static int mxs_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
* If the PWM channel is disabled, make sure to turn on the clock
* before writing the register. Otherwise, keep it enabled.
*/
- if (!test_bit(PWMF_ENABLED, &pwm->flags)) {
+ if (!pwm_is_enabled(pwm)) {
ret = clk_prepare_enable(mxs->clk);
if (ret)
return ret;
@@ -92,7 +92,7 @@ static int mxs_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
/*
* If the PWM is not enabled, turn the clock off again to save power.
*/
- if (!test_bit(PWMF_ENABLED, &pwm->flags))
+ if (!pwm_is_enabled(pwm))
clk_disable_unprepare(mxs->clk);
return 0;

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